Abstract: Provided is a method in which a management server provides wireless LAN security policy by participating in multiple APs. The method includes a step of receiving terminal information of a terminal, which is acquired in a process of scanning broadcasting information of multiple APs, from each of the multiple APs, a step of issuing and storing a token for opening a wireless LAN data channel to each of the multiple APs on the basis of reception time points of the terminal information, a step of receiving a token request for opening a wireless LAN data channel to an AP to be accessed, selected by a terminal among the multiple APs, and a step of distributing, to the terminal, a token of the AP to be accessed corresponding to the token request.

Abstract: Provided is a matching system including a policy and rule processing unit configured to extract SC units for each application service required, combine the SC units, configure a transaction unit, and determine an amount to be charged for a transaction according to a charging rule; a matching processing unit configured to match the extracted SC units to NC units; and an NC combination processing unit configured to combine the NC units used for the matching and deliver the combination of the NC units and detailed operating conditions to the networking management system.

Abstract: A noise reducing wall system is provided. The noise reducing wall system includes first and second board layers facing in parallel with each other along a longitudinal direction thereof, a heat insulation member surrounded by the first and second board layers, and a stud connection structure that fastens the first and second board layers using a stud bolt passing through the heat insulation member to connect the first board layer and the second board layer. The stud bolt connects the first and second board layers in a thickness direction and has a bent portion extending in the longitudinal direction and disposed at an intermediate point in the thickness direction.

Abstract: A noise reducing wall system is provided. The noise reducing wall system includes first and second board layers facing in parallel with each other along a longitudinal direction thereof, a heat insulation member surrounded by the first and second board layers, and a stud connection structure that fastens the first and second board layers using a stud bolt passing through the heat insulation member to connect the first board layer and the second board layer. The stud bolt connects the first and second board layers in a thickness direction and has a bent portion extending in the longitudinal direction and disposed at an intermediate point in the thickness direction.

Abstract: Provided is a matching system including a policy and rule processing unit configured to extract SC units for each application service required, combine the SC units, configure a transaction unit, and determine an amount to be charged for a transaction according to a charging rule; a matching processing unit configured to match the extracted SC units to NC units; and an NC combination processing unit configured to combine the NC units used for the matching and deliver the combination of the NC units and detailed operating conditions to the networking management system.

Abstract: A method and apparatus for performing multipath transmission of a data packet. The method includes: setting, by an electronic apparatus performing multipath transmission of a data packet, a multipath network to another electronic apparatus, and setting a re-transmission leased path used for performing packet re-transmission; dividing a data packet into a plurality of sub-packets, and assigning the sub-packets to the multipath network; transmitting the sub-packets by using the assigned multipath; and checking a transmission error of the sub-packet, and re-transmitting the sub-packet in which a transmission error has occurred by using the re-transmission leased path.

Abstract: The present invention relates to a peptide derived from the Helicobacter pylori ribosomal protein L1, and the use of this peptide an antibiotic. More specifically, the peptide is derived by making site-specific substitution mutations in a peptide consisting of amino acids 2-20 of the Helicobacter pylori ribosomal protein L1. The resulting peptide has both antibacterial activity and anti-inflammatory activity, but no cytotoxicity.

Abstract: The present invention relates to a novel antibiotic peptide originated from the ribosomal protein L1 of Helicobacter pylori and a use of the same. Particularly, the novel peptide represented by SEQ. ID. NO: 4 was synthesized by replacing phenylalanine, the 12th amino acid of the peptide composed of the amino acid sequence represented by SEQ. ID. NO: 3, with proline. The present inventors confirmed that the novel peptide had a significant antibacterial activity but had no cytotoxicity. In addition, the inventors confirmed that the peptide of the invention had in vivo anti-inflammatory effect, so that the novel peptide can be used as an active ingredient of a natural antibacterial agent.

Abstract: A network testing system according to an exemplary embodiment of the present invention includes: a radio wave transmitting apparatus which transmits a standard wave including timing data; a first network testing apparatus which performs time synchronization based on the timing data at the time of receiving the standard wave and generates first timing information; and a second network testing apparatus which performs time synchronization based on the timing data at the time of receiving the standard wave, generates second timing information, and transmits a network test reply and the second timing information for network testing at the time of receiving a network test request and the first timing information from the first network testing apparatus to perform the network testing along with the first network testing apparatus.

Abstract: An apparatus and method for processing an electronic document that provide an electronic document which is multi-hierarchically structured are provided. The apparatus stores the electronic document including a basic layer having a basic document and an additional layer having displayable additional information which is associated with the basic document, and configures a screen including the basic document and the additional information.

Abstract: Disclosed is a method for determining a transmission path of a router system, in which a forwarding table of the router system is managed with a dualized address system including an absolute address indicating a physical port and a relative address indicating the place of the absolute address. Only the absolute address in a relative forwarding table can be changed without changing the relative address when traffic congestion occurs on a certain port of the router system or when load-balancing is needed, so that the router can actively cope with a real-time change of a destination address.

Abstract: Disclosed is a method for determining a transmission path of a router system, in which a forwarding table of the router system is managed with a dualized address system including an absolute address indicating a physical port and a relative address indicating the place of the absolute address. Only the absolute address in a relative forwarding table can be changed without changing the relative address when traffic congestion occurs on a certain port of the router system or when load-balancing is needed, so that the router can actively cope with a real-time change of a destination address.

Abstract: A method for providing IP multicast service using a VLAN in a network including an IP multicast/VLAN manager for supporting an IGMP and a GVRP, and multicast group members, includes: after generating an IP multicast group, allowing a sender to request the IP multicast/VLAN manager to search for at least one host joining the IP multicast group; allowing the IP multicast/VLAN manager to check whether the host supports the VLAN; and allowing the sender to transfer a packet through the VLAN if the host joining the IP multicast group supports the VLAN and allowing the sender to broadcast a packet though IP multicast if not.

Abstract: Provided is a method and apparatus for assigning an Internet Protocol (IP) address using agents in a zero configuration network. The IP address assignment method involves: (a) receiving a registration request message of a user computer which contains a home agent IP address, and the ID and password of the user computer; (b) transmitting to the user computer an encoded address answer message which indicates permission of the address registration; and (c) setting up a network environment in the user computer by decoding the encoded address answer message. Problems of mobile IP extensibility and a dynamic host configuration protocol (DHCP) authentication are solved by applying the concept of a mobile Internet protocol agent to the protocol in a zero configuration network.

Abstract: The present invention presents a method for providing IP multicast service using a virtual LAN, which can provide efficient multicast service in a network by applying the virtual LAN to the IP multicast service. A method for providing IP multicast service using a VLAN in a network including an IP multicast/VLAN manager for supporting an IGMP and a GVRP, and multicast group members, comprising the steps of: after generating an IP multicast group, allowing a sender to request the IP multicast/VLAN manager to search for at least one host joining the IP multicast group; allowing the IP multicast/VLAN manager to check whether the host supports the VLAN; and allowing the sender to transfer a packet through the VLAN if the host joining the IP multicast group supports the VLAN and allowing the sender to broadcast a packet through IP multicast if not.

Abstract: Provided is a method and apparatus for assigning an Internet Protocol (IP) address using agents in a zero configuration network. The IP address assignment method involves: (a) receiving a registration request message of a user computer which contains a home agent IP address, and the ID and password of the user computer; (b) transmitting to the user computer an encoded address answer message which indicates permission of the address registration; and (c) setting up a network environment in the user computer by decoding the encoded address answer message. Problems of mobile IP extensibility and a dynamic host configuration protocol (DHCP) authentication are solved by applying the concept of a mobile Internet protocol agent to the protocol in a zero configuration network.

Abstract: The activated kaolin powder compound is prepared from naturally-existing kaolin (hereinafter “natural kaolin”). The activated kaolin powder compound is prepared by heating natural kaolin to 480° C. within at most one hour, calcinating the heated natural kaolin at high temperature by heating in the range of 800˜950° C. over at least 15 minutes, quenching the calcinated kaolin with water or air, and pulverizing the quenched activated kaolin to give powder having particle sizes of 2 &mgr;m or less, wherein the natural kaolin is primarily composed of halloysite (Al2O3.2SiO2.4H2O). The activated kaolin powder compound is employed in an amount of about 5 to 15% by weight of cement for preparing mortar or cement. The cement composition containing the activated kaolin powder compound can provide a mortar or concrete having excellent properties in compressive strength, flexural strength and water permeability.

Abstract: The activated kaolin powder compound is prepared from naturally-existing kaolin (hereinafter "natural kaolin"). The activated kaolin powder compound is prepared by heating natural kaolin to 480.degree. C. within at most one hour, calcinating the heated kaolin at high temperature by heating to 980.degree. C. over at least one hour, quenching the calcinated kaolin with water or air, and pulverizing the quenched kaolin to give particle sizes of 2 .mu.m or less. The activated kaolin powder compound is employed in an amount of about 5 to 15% by weight of cement for preparing mortar or cement. The cement composition containing the activated kaolin powder compound can provide a mortar or concrete having superior properties in compressive strength, flexural strength and water permeability.